<template>
  <div class="login_container">
    <img src="../assets/2.jpg" style="width:100%;height:100%"/>
     <div class="login_box">
       <!-- 头像区域 -->
        <div class="avatar_box">
          <img src="../assets/3.jpg" alt="">
        </div>
        <!-- 登录表单区域 -->
        <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0px" class="login_form">
          <!-- 用户名 -->
          <el-form-item prop="username">
            <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
          </el-form-item>
          <!-- 密码 -->
          <el-form-item prop="password">
            <el-input v-model="loginForm.password" prefix-icon="iconfont icon-3702mima" type="password"></el-input>
          </el-form-item>
          <!-- 按钮区域 -->
          <el-form-item class="btns">
            <el-button type="primary" @click="login">登录</el-button>
            <el-button type="info" @click="resetLoginForm">重置</el-button>
          </el-form-item>
        </el-form>
      </div>
  </div>

</template>

<script>
export default {
  data() {
    return {
    // 这是登陆表单的数据绑定
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      // 这是表单的验证规则
      loginFormRules: {
        // 验证用户名是否合法
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        // 验证密码是否合法
        password: [
          { required: true, message: '请输入登录密码名称', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  // 点击重置按钮，重置登陆表单
  methods: {
    resetLoginForm() {
     // console.log(this)
     this.$refs.loginFormRef.resetFields()
    },
    login() {
      this.$refs.loginFormRef.validate(async valid => {
       // console.log(valid)
        if (!valid) return
        const { data: res } = await this.$http.post('login', this.loginForm)
        if (res.meta.status !== 200) return this.$message.error('登录失败！')
        this.$message.success('登录成功！')
        // console.log(res)
        // token验证
        window.sessionStorage.setItem('token', res.data.token)
        // 跳转后台页面
        this.$router.push('/home')
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login_container {
  background-color: #3792c7;
  height: 845px;
  width: 100%;
  margin: 0px;
  padding: 0px;
}

.login_box {
  width: 450px;
  height: 300px;
  background-color: #ffffff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);

  .avatar_box {
    height: 130px;
    width: 130px;
    border: 1px solid #ffffff;
    border-radius: 80%;
    padding: 10px;
    box-shadow: 0 0 10px #3792c7;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #ffffff;
    img {
      height: 100%;
      width: 100%;
      border-radius: 50%;
      //background-color: aqua;
    }
  }
}

.login_form {
  position:absolute;
  bottom: 0;
  width: 100%;
  padding: 0 8%;
  box-sizing: border-box;
}

.btns {
  display: flex;
  justify-content: flex-end;
}
</style>
